CHEMICAL ENGINEERING

Question: Extraction of pencillin employs a __________ extraction coloumn.
[A].

centrifugal

[B].

packed

[C].

plate

[D].

None of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Design calculation for multiple component distillation is done by
[A].

Ponchon-Savarit method

[B].

Mccabe-Thiele method

[C].

enthalpy concentration method

[D].

tray to tray calculations.

Answer: Option D

Explanation:

No answer description available for this question.

Question: With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux
[A].

increases

[B].

decreases

[C].

remains same

[D].

may increase or decrease ; depends on system.

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ developed the film theory.
[A].

Higbie

[B].

Fick

[C].

Ergun

[D].

Levenspeil

Answer: Option A

Explanation:

No answer description available for this question.

Question: In liquid-liquid extraction, the number of phases at plait point is
[A].

1

[B].

2

[C].

3

[D].

4

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ equation applies to diffusivities in liquids.
[A].

Gilliland

[B].

Hirschfelder

[C].

Wilke and Chang

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Boiling point diagram is not affected by the ambient
[A].

pressure

[B].

humidity

[C].

temperature

[D].

both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: Large scale drying of wheat is done in a __________ dryer.
[A].

fluidised bed

[B].

spouted bed

[C].

tray

[D].

vacuum rotary

Answer: Option B

Explanation:

No answer description available for this question.

Question: Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.
[A].

agitated vessel

[B].

sieve tray column

[C].

bubble cap column

[D].

packed tower

Answer: Option A

Explanation:

No answer description available for this question.

Question: ‘ADDUCTS’ and ‘CLATHRATES’ are used in case of
[A].

extractive distillation.

[B].

crystallisation.

[C].

absorption.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.